Change the Image version to 1.15-alpine for the pod you just created and verify the image version is updated.

• A.Kubect1 set image pod/nginx nginx=nginx:1.15-alpine
  kubect1 describe po nginx
  // another way it will open vi editor and change the version
  kubeclt edit po nginx
  kubect1 describe po nginx
• B.Kubect1 set image pod/nginx nginx=nginx:1.15-alpine
  kubect1 describe po nginx
  // another way it will open vi editor and change the version
  kubect1 describe po nginx

Comment: *

Name: *

Email: *

Verification: *

Score: 7%

Task
Reconfigure the existing deployment front-end and add a port specification named http exposing port 80/tcp of the existing container nginx.
Create a new service named front-end-svc exposing the container port http.
Configure the new service to also expose the individual Pods via a NodePort on the nodes on which they are scheduled.

Comment: *

Name: *

Email: *

Verification: *

You are running a stateful application using a StatefulSet. How do you ensure that the application data is preserved during a rolling update?

Correct Answer:

See the solution below with Step by Step Explanation.
Explanation:
Solution (Step by Step) :
1. Use Persistent Volumes:
- Use Persistent Volumes (PVs) and Persistent Volume Claims (PVCs) to provide persistent storage for the stateful application data.
- Ensure that the PVCs are mounted to the pods in the StatefulSet.

2. Configure Rolling Updates: - Configure the StatefulSet's updateStrategy' to use a rolling update strategy. - Ensure that the 'updateStrategy.type' is set to 'RollingUpdate'. 3. Validate Data Preservation: - Perform a rolling update by updating the StatefulSet. - Validate that the application data is preserved during the update process. - Check the logs and application state to confirm that the data is intact.

Comment: *

Name: *

Email: *

Verification: *

Check nodes which are ready and print it to a file /opt/nodestatus

• A.JSONPATH='{range .items[*]}{@.metadata.name}:{range
  @.status.conditions[*]}{@.type}={@.status};{end}{end}' \
  && kubectl get nodes -o jsonpath="$JSONPATH" | grep
  "Ready=True" > /opt/node-status
  //Verify
  cat /opt/node-status
• B.JSONPATH='{range .items[*]}{@.metadata.name}:{range
  @.status.conditions[*]}{@.type}={@.status};{end}{end}' \
  //Verify
  cat /opt/node-status

Comment: *

Name: *

Email: *

Verification: *

Scale the deployment webserver to

Correct Answer:

See the solution below.
Explanation
solution
F:\Work\Data Entry Work\Data Entry\20200827\CKA\14 B.JPG

Comment: *

Name: *

Email: *

Verification: *